libboost-optional/1.85.0

A value-semantic, type-safe wrapper for representing 'optional' (or 'nullable') objects of a given type. An optional object may or may not contain a value of the underlying type

A library for representing optional (nullable) objects in C++.

optional<int> readInt(); // this function may return either an int or a not-an-int

if (optional<int> oi = readInt()) // did I get a real int
  cout << "my int is: " << *oi;   // use my int
else
  cout << "I have no int";

For more information refer to the documentation provided with this library.

version	1.85.0
license	BSL-1.0Boost Software License 1.0
repository	https://pkg.cppget.org/1/stable
download	libboost-optional-1.85.0.tar.gz
sha256	eb36e00d6801769c3932943eebac95fb78f448db7bd5bab2548e2e10846b97a2

project	boost
url	github.com/boostorg/optional
doc-url	www.boost.org/doc/libs/1_85_0/libs/optional
package-url	github.com/build2-packaging/boost
email	boost-users@lists.boost.orgMailing list
package-email	packaging@build2.orgMailing list
topics	C++Boost

Depends (10)

	libboost-assert == 1.85.0
	libboost-config == 1.85.0
	libboost-core == 1.85.0
	libboost-detail == 1.85.0
	libboost-move == 1.85.0
	libboost-predef == 1.85.0
	libboost-static-assert == 1.85.0
	libboost-throw-exception == 1.85.0
	libboost-type-traits == 1.85.0
	libboost-utility == 1.85.0

Reviews

fail	0
pass	1

Builds

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target	x86_64-apple-darwin23.5.0
tgt config	macos_14-clang_15.0-static_O3
timestamp	2026-05-15 21:51:48 UTC (01 16:33:24 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-apple-darwin23.5.0
tgt config	macos_14-clang_15.0-O3
timestamp	2026-05-15 21:50:04 UTC (01 16:35:09 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-apple-darwin23.5.0
tgt config	macos_14-clang_15.0
timestamp	2026-05-15 21:48:18 UTC (01 16:36:55 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
tgt config	linux_debian_12-clang_18_libc++-static_O3
timestamp	2026-05-15 00:40:14 UTC (02 13:44:59 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
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timestamp	2026-05-15 00:39:35 UTC (02 13:45:37 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
tgt config	linux_debian_12-clang_18_libc++
timestamp	2026-05-15 00:39:02 UTC (02 13:46:10 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
tgt config	linux_debian_12-clang_18-static_O3
timestamp	2026-05-15 00:38:31 UTC (02 13:46:41 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
tgt config	linux_debian_12-clang_18-O3
timestamp	2026-05-15 00:37:51 UTC (02 13:47:22 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
tgt config	linux_debian_12-clang_18
timestamp	2026-05-15 00:37:20 UTC (02 13:47:52 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-14 22:18:02 UTC (02 16:07:11 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_fedora_43-gcc_15-bindist
timestamp	2026-05-14 22:17:40 UTC (02 16:07:33 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
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timestamp	2026-05-14 22:17:19 UTC (02 16:07:54 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-14 22:17:16 UTC (02 16:07:56 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-clang_22_libc++-O3
timestamp	2026-05-14 22:17:13 UTC (02 16:07:59 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-clang_22_libc++
timestamp	2026-05-14 22:17:02 UTC (02 16:08:10 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
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timestamp	2026-05-14 22:16:42 UTC (02 16:08:31 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
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timestamp	2026-05-14 22:16:34 UTC (02 16:08:38 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-gcc_16-O3
timestamp	2026-05-14 22:16:25 UTC (02 16:08:47 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_ubuntu_24.04-gcc_13-bindist
timestamp	2026-05-14 22:16:11 UTC (02 16:09:01 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-gcc_16
timestamp	2026-05-14 22:16:11 UTC (02 16:09:01 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-gcc_15-O3
timestamp	2026-05-14 22:16:08 UTC (02 16:09:04 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-clang_22-static_O3
timestamp	2026-05-14 22:16:07 UTC (02 16:09:05 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-gcc_14-bindist
timestamp	2026-05-14 22:16:00 UTC (02 16:09:12 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
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timestamp	2026-05-14 22:15:46 UTC (02 16:09:27 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-gcc_15
timestamp	2026-05-14 22:15:45 UTC (02 16:09:27 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
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timestamp	2026-05-14 22:15:43 UTC (02 16:09:29 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
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timestamp	2026-05-14 22:15:19 UTC (02 16:09:53 days ago)
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result	success \| log \| rebuild

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result	success \| log \| rebuild

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result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-14 20:57:08 UTC (02 17:28:05 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
tgt config	linux_debian_12-gcc_14
timestamp	2026-05-14 20:57:06 UTC (02 17:28:07 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
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timestamp	2026-05-13 18:22:11 UTC (03 20:03:01 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-11 20:33:59 UTC (05 17:51:13 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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tgt config	windows_10-msvc_18-O2
timestamp	2026-05-11 20:33:51 UTC (05 17:51:21 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-11 20:32:52 UTC (05 17:52:21 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-11 20:22:58 UTC (05 18:02:14 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-11 20:22:12 UTC (05 18:03:01 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-11 20:22:11 UTC (05 18:03:02 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-11 12:15:14 UTC (06 02:09:58 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-08 23:13:37 UTC (08 15:11:35 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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tgt config	windows_10-gcc_15.2_mingw_w64-O2
timestamp	2026-05-08 23:13:13 UTC (08 15:12:00 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-w64-mingw32
tgt config	windows_10-gcc_15.2_mingw_w64
timestamp	2026-05-08 23:12:17 UTC (08 15:12:56 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_ubuntu_26.04-gcc_15-bindist
timestamp	2026-05-08 18:35:13 UTC (08 19:50:00 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
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timestamp	2026-05-05 11:37:12 UTC (12 02:48:01 days ago)
result	success \| log \| rebuild

target	x86_64-apple-darwin23.5.0
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result	excluded (https://github)

target	x86_64-apple-darwin23.5.0
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result	excluded (https://github)

target	x86_64-apple-darwin23.5.0
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